9f17d59e
 陈明泉
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#ifndef __ZMF_CODEC_H__
#define __ZMF_CODEC_H__
/**
* @file zmf_codec.h
* @brief ZMF codec interfaces
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Parameters of video codec.
*/
typedef struct {
/* 'Base','Main', 'Extd', 'High' */
char cProfile[4];
/* '10','1b','11','12',...,'51' */
char cLevel[2];
char bErrorConcealOn;
char bSmallNalu;
} ZmfVideoCodecH264;
typedef struct {
char bPictureLossIndicationOn;
char feedbackModeOn;
char bErrorConcealOn;
} ZmfVideoCodecVP8;
typedef union {
ZmfVideoCodecH264 H264;
ZmfVideoCodecVP8 VP8;
} ZmfVideoCodecSpecific;
typedef struct {
/* video settings */
unsigned width;
unsigned height;
/* kbps */
unsigned startBitrate;
unsigned maxBitrate;
unsigned minBitrate;
unsigned maxFramerate;
ZmfVideoCodecSpecific codecSpecific;
} ZmfVideoCodec;
/**
* @}
*/
/**
* @brief Parameters of audio codec.
*/
typedef struct {
unsigned bandMode;
} ZmfAudioCodecAMR;
typedef union {
ZmfAudioCodecAMR AMR;
} ZmfAudioCodecSpecific;
typedef struct {
unsigned sampleRate;
unsigned bitrate;
ZmfAudioCodecSpecific codecSpecific;
} ZmfAudioCodec;
/**
* @}
*/
typedef union {
ZmfVideoCodec video;
ZmfAudioCodec audio;
} ZmfCodec;
typedef enum {
ZmfCodecKeyFrame = 0,
ZmfCodecBitrate,
ZmfCodecFramerate,
ZmfAmrBandMode,
/* optional */
ZmfCodecWidth,
ZmfCodecHeight,
ZmfCodecPacketLoss,
ZmfCodecRtt,
} ZmfCodecKey;
typedef void (*ZmfCodecOut)(void* user_data, const char* buf, unsigned length, void* cookie, int bLastFrag);
/**
* @brief Type of Codec class.
*/
typedef struct {
/**
* @brief Create new codec instance
* @param callback The codec receive callback
* @param user_data The callback user data
* @return 0 on succeed, otherwise failed.
*/
void* (*codecNew)(const char* codecName, ZmfCodecOut callback, void* user_data);
/**
* @brief execute codec instance
* @param handle The codec instance pointer.
* @param in The source data pointer.
* @param in_len The byte count of in
* @return 0 on succeed, otherwise failed.
*/
int (*codecDo)(void *handle, void* in, unsigned in_len, void* cookie, int bLastFrag);
/**
* @brief reset codec instance
* @param handle The codec instance pointer.
* @param settings The codec settings parameters.
* @return 0 on succeed, otherwise failed.
*/
int (*codecReset)(void *handle, ZmfCodec* settings);
/**
* @brief set codec dynamic parameters.
* @param handle The codec instance pointer.
* @param key The name of parameters @ref ZmfCodecKey
* @param value The value of parameters.
* @param value_size The bytes of value
* @return 0 on succeed, otherwise failed.
*/
int (*codecSet)(void *handle, ZmfCodecKey key, const void *value, int value_size);
/**
* @brief get codec dynamic parameters, is optional.
* @param handle The codec instance pointer.
* @param key The name of parameters @ref ZmfCodecKey
* @param value The value of parameters.
* @param value_size The bytes of value
* @return 0 on succeed, otherwise failed.
*/
int (*codecGet)(void *handle, ZmfCodecKey key, void *value, int value_size);
/**
* @brief delete codec instance.
* @param handle The codec instance pointer.
* @return 0 on succeed, otherwise failed.
*/
int (*codecDelete)(void *handle);
} ZmfCodecClass;
/**
* @}
*/
/**
* @brief register external Codec
* @param codecName The codec name, must keep valid globally
* @param ZmfCodecClass The codec class @ref ZmfCodecClass, must keep valid globally.
* @return 0 on succeed, otherwise failed.
*/
int Zmf_CodecRegister(const char* codecName, const ZmfCodecClass *klass);
/**
* @brief Get Codec
* @param codecName The codec name,liking com.juphoon.H264.decoder
* @param ZmfCodecClass The codec class @ref ZmfCodecClass.
* @return 0 on succeed, otherwise failed.
*/
const ZmfCodecClass* Zmf_CodecGetClass(const char* codecName);
/**
* @brief Get list of codec name
* after call, *count is the number of codec.
* @param codecNames The codec name array
* @param count the array size of codecNames
* @return size of codecNames on succeed, otherwise failed.
*/
int Zmf_CodecGetList(const char* codecNames[], int *count);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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